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ConsumeDescendentComponent.ets</font>
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<pre><span class="s0">/* 
 * Copyright (c) 2023 Huawei Device Co., Ltd. 
 * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an &quot;AS IS&quot; BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */</span>

<span class="s1">import { common } from </span><span class="s2">'@kit.AbilityKit''</span><span class="s3">;</span>
<span class="s1">import </span><span class="s4">{ </span><span class="s1">ColorType </span><span class="s4">} </span><span class="s1">from </span><span class="s2">'../model/ColorType'</span><span class="s3">;</span>
<span class="s1">import </span><span class="s4">{ </span><span class="s1">COLOR_SELECT_DATA </span><span class="s4">} </span><span class="s1">from </span><span class="s2">'../data/ColorData'</span><span class="s3">;</span>
<span class="s1">import </span><span class="s4">{ </span><span class="s1">getResourceString </span><span class="s4">} </span><span class="s1">from </span><span class="s2">'../../../../utils/ResourceUtils'</span><span class="s3">;</span>
<span class="s1">import </span><span class="s4">{ </span><span class="s1">ViewCodeText </span><span class="s4">} </span><span class="s1">from </span><span class="s2">'../../../../commoncomponents/ViewCodeText'</span><span class="s3">;</span>

<span class="s0">// Declare a context variable</span>
<span class="s1">let context </span><span class="s3">= </span><span class="s1">getContext</span><span class="s5">(</span><span class="s1">this</span><span class="s5">) </span><span class="s1">as common</span><span class="s3">.</span><span class="s1">UIAbilityContext</span><span class="s3">;</span>

<span class="s6">@</span><span class="s1">Component</span>
<span class="s1">export struct ConsumeDescendentComponent </span><span class="s4">{</span>
  <span class="s0">// Initializes a color array of data</span>
  <span class="s6">@</span><span class="s1">State selectColors</span><span class="s3">: </span><span class="s1">ColorType</span><span class="s5">[] </span><span class="s3">= </span><span class="s1">COLOR_SELECT_DATA</span><span class="s3">;</span>
  <span class="s0">// And ye components bidirectional synchronous circular color</span>
  <span class="s6">@</span><span class="s1">Consume consumeCircleColor</span><span class="s3">: </span><span class="s1">Resource</span><span class="s3">;</span>
  <span class="s0">// The Index value of bidirectional synchronization Select with the master component</span>
  <span class="s6">@</span><span class="s1">Consume currentSelectIndex</span><span class="s3">: </span><span class="s1">number</span><span class="s3">;</span>

  <span class="s1">build</span><span class="s5">() </span><span class="s4">{</span>
    <span class="s1">Column</span><span class="s5">() </span><span class="s4">{</span>
      <span class="s0">// Click to view source code</span>
      <span class="s1">ViewCodeText</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">webSrc</span><span class="s3">: </span><span class="s1">$rawfile</span><span class="s5">(</span><span class="s2">'ConsumeDescendentComponent.ets.html'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
      <span class="s1">Row</span><span class="s5">() </span><span class="s4">{</span>
        <span class="s1">Select</span><span class="s5">(</span><span class="s1">this</span><span class="s3">.</span><span class="s1">selectColors</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">selected</span><span class="s5">(</span><span class="s1">this</span><span class="s3">.</span><span class="s1">currentSelectIndex</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">value</span><span class="s5">(</span><span class="s1">getResourceString</span><span class="s5">(</span><span class="s1">context</span><span class="s3">, </span><span class="s1">this</span><span class="s3">.</span><span class="s1">selectColors</span><span class="s5">[</span><span class="s1">this</span><span class="s3">.</span><span class="s1">currentSelectIndex</span><span class="s5">]</span><span class="s3">.</span><span class="s1">value</span><span class="s5">))</span>
          <span class="s3">.</span><span class="s1">fontColor</span><span class="s5">(</span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.color.button_text_color'</span><span class="s5">))</span>
          <span class="s3">.</span><span class="s1">font</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">size</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.tips_font_size'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">selectedOptionFont</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">size</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.tips_font_size'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">optionFont</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">size</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.tips_font_size'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">id</span><span class="s5">(</span><span class="s2">'grandsonCompB'</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">onSelect</span><span class="s5">((</span><span class="s1">index</span><span class="s3">: </span><span class="s1">number</span><span class="s5">) </span><span class="s3">=&gt; </span><span class="s4">{</span>
            <span class="s0">// The data page of the child component @Consume is updated, and the data page of the child component @Provide is updated synchronously</span>
            <span class="s1">this</span><span class="s3">.</span><span class="s1">currentSelectIndex </span><span class="s3">= </span><span class="s1">index</span><span class="s3">;</span>
            <span class="s1">this</span><span class="s3">.</span><span class="s1">consumeCircleColor </span><span class="s3">= </span><span class="s1">this</span><span class="s3">.</span><span class="s1">selectColors</span><span class="s5">[</span><span class="s1">index</span><span class="s5">]</span><span class="s3">.</span><span class="s1">color</span><span class="s3">;</span>
          <span class="s4">}</span><span class="s5">)</span>
        <span class="s1">Circle</span><span class="s5">()</span>
          <span class="s3">.</span><span class="s1">size</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">width</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.circle_size'</span><span class="s5">)</span><span class="s3">, </span><span class="s1">height</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.circle_size'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
          <span class="s3">.</span><span class="s1">fill</span><span class="s5">(</span><span class="s1">this</span><span class="s3">.</span><span class="s1">consumeCircleColor</span><span class="s5">)</span>

      <span class="s4">}</span><span class="s3">.</span><span class="s1">justifyContent</span><span class="s5">(</span><span class="s1">FlexAlign</span><span class="s3">.</span><span class="s1">SpaceAround</span><span class="s5">)</span>
      <span class="s3">.</span><span class="s1">width</span><span class="s5">(</span><span class="s2">'100%'</span><span class="s5">)</span>
      <span class="s3">.</span><span class="s1">margin</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">bottom</span><span class="s3">: </span><span class="s7">6 </span><span class="s4">}</span><span class="s5">)</span>

      <span class="s1">Text</span><span class="s5">(</span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.string.deepnest_descendent_titletwo'</span><span class="s5">))</span>
        <span class="s3">.</span><span class="s1">fontColor</span><span class="s5">(</span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.color.tips_font_color'</span><span class="s5">))</span>
        <span class="s3">.</span><span class="s1">fontSize</span><span class="s5">(</span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.button_text_size'</span><span class="s5">))</span>
        <span class="s3">.</span><span class="s1">width</span><span class="s5">(</span><span class="s2">'100%'</span><span class="s5">)</span>
        <span class="s3">.</span><span class="s1">textAlign</span><span class="s5">(</span><span class="s1">TextAlign</span><span class="s3">.</span><span class="s1">Center</span><span class="s5">)</span>
    <span class="s4">}</span>
    <span class="s3">.</span><span class="s1">padding</span><span class="s5">(</span><span class="s7">10</span><span class="s5">)</span>
    <span class="s3">.</span><span class="s1">border</span><span class="s5">(</span><span class="s4">{ </span><span class="s1">radius</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.component_radius'</span><span class="s5">)</span><span class="s3">, </span><span class="s1">color</span><span class="s3">: </span><span class="s1">Color</span><span class="s3">.</span><span class="s1">Red</span><span class="s3">, </span><span class="s1">width</span><span class="s3">: </span><span class="s1">$r</span><span class="s5">(</span><span class="s2">'app.float.border_width'</span><span class="s5">) </span><span class="s4">}</span><span class="s5">)</span>
  <span class="s4">}</span>
<span class="s4">}</span></pre>
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